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公开(公告)号：US11387561B2
公开(公告)日：2022-07-12
申请号：US17040581
申请日：2019-03-25
Applicant: FUJIKURA LTD.
Inventor： Kaushal Shailendra , Ning Guan
Abstract: A dielectric loss when a signal wave is transmitted between a feed line and an antenna element via a slot is reduced. An antenna 21 includes: a dielectric substrate 28 including a recess 28b; a conductive ground layer 27 that is bonded to the dielectric substrate 28 to cover the recess 28b, and includes slots 27a-27d arranged on an inner side relative to the recess 28b; a dielectric layer 26 bonded to the conductive ground layer 27 on a side opposite to the dielectric substrate 28 relative to the conductive ground layer 27; antenna elements 29a-29d formed on a bottom 28d of the recess 28b at positions facing the slots 27a-27d; and a feed line 24a that is formed on a side opposite to the conductive ground layer 27 relative to the dielectric layer 26, and is to be electromagnetically coupled to the antenna elements 29a-29d via the slots 27a-27d.
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公开(公告)号：US11108166B2
公开(公告)日：2021-08-31
申请号：US16643913
申请日：2018-09-12
Applicant: Fujikura Ltd.
Inventor： Shailendra Kaushal , Ning Guan
Abstract: Patch antennas include four radiation elements arrayed in a rectangular lattice pattern at four positions around a feeding point in the electrode, and wiring which electrically couples each of the radiation elements and the feeding point with an equal wiring length, and is fed by a line-shaped feeding conductor arranged at a position intersecting slots formed at a ground conductor plate, where the feeding conductor has a repetitive branch pattern in which multiple pieces of line-shaped wiring are connected in T-shapes being perpendicular to each other at a total of 2N−1 branch points from a base end to each of the tips, and each of the tips is bent in a same direction in the second direction from a terminal end of the line-shaped wiring to which the tip is connected.
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公开(公告)号：US20210075113A1
公开(公告)日：2021-03-11
申请号：US17040590
申请日：2019-03-25
Applicant: FUJIKURA LTD.
Inventor： Kaushal Shailendra , Ning Guan
Abstract: To improve a gain of an antenna. An antenna 1 includes a dielectric layer 6, a conductive ground layer 7 bonded to the layer 6 and including active slots 7c-7f aligned at regular intervals, aligned active elements 9c-9f formed facing the active slots 7c-7f, respectively, first passive elements 9b, 9a aligned with and extending from one end of a row of the active elements 9c-9f, second passive elements 9g, 9h aligned with and extending from the other end of the row, a feed line 4a formed on a side opposite to the layer 7 with respect to the layer 6, to be electromagnetically coupled to the active elements 9c-9f via the active slots 7c-7f. The second passive elements 9g, 9h are arranged in line symmetry with the first passive elements 9b, 9a with respect to a line 9z passing through the center of the row and perpendicular to the row.
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公开(公告)号：US20210066796A1
公开(公告)日：2021-03-04
申请号：US17051214
申请日：2019-03-25
Applicant: Fujikura Ltd.
Inventor： Kaushal Shailendra , Ning Guan
Abstract: To widen a range of an angle in which the directivity of an antenna is controllable to be high. An antenna includes a sheet-shaped laminated body that includes a conductive pattern layer, a first dielectric layer, a conductive ground layer, and an antenna pattern layer, the antenna pattern layer including element rows arranged in parallel, the element rows each including even-numbered radiation elements that are connected in series and linearly aligned at an interval in a direction orthogonal to a parallel alignment direction of the element rows, the conductive pattern layer including feed lines for feeding power to the center of each or the element rows, the element rows being divided into groups using a bending line as a boundary, by bending the laminated body along the bending line.
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公开(公告)号：US20200212595A1
公开(公告)日：2020-07-02
申请号：US16643913
申请日：2018-09-12
Applicant: Fujikura Ltd.
Inventor： Shailendra Kaushal , Ning Guan
Abstract: Patch antennas include four radiation elements arrayed in a rectangular lattice pattern at four positions around a feeding point in the electrode, and wiring which electrically couples each of the radiation elements and the feeding point with an equal wiring length, and is fed by a line-shaped feeding conductor arranged at a position intersecting slots formed at a ground conductor plate, where the feeding conductor has a repetitive branch pattern in which multiple pieces of line-shaped wiring are connected in T-shapes being perpendicular to each other at a total of 2N−1 branch points from a base end to each of the tips, and each of the tips is bent in a same direction in the second direction from a terminal end of the line-shaped wiring to which the tip is connected.
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Patent Agency Ranking
公开(公告)号：US20200083611A1
公开(公告)日：2020-03-12
申请号：US16466467
申请日：2017-11-09
Applicant: FUJIKURA LTD.
Inventor： Yuta Hasegawa , Ning Guan
Abstract: The present invention provides an antenna device that has a radiation pattern whose peak direction is independent of a frequency of an electromagnetic wave emitted. The antenna device includes: a ground layer (11) made of an electric conductor; a plurality of array antennas (22) provided in a layer above the ground layer (11); and a Rotman lens (32) provided in a layer below the ground layer (11). Each array antenna (22i) includes: a power feed line (23Li) at a center of which a feedpoint (23Pi) is located; and a plurality of antenna elements (241i through 248i and 251i through 258i) connected to the power feed line (23Li), and has a point symmetric shape with respect to the feedpoint (23Pi) as a center of symmetry. Each feedpoint (23Pi) is coupled to any one output port (322i) of the Rotman lens (32) via a slot (111i) provided in the ground layer (11).
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公开(公告)号：US20190051968A1
公开(公告)日：2019-02-14
申请号：US16078199
申请日：2017-02-21
Applicant: FUJIKURA LTD.
Inventor： Hiroiku Tayama , Ning Guan
CPC classification number: H01Q1/085 , H01Q1/3283 , H01Q1/38 , H01Q5/371 , H01Q9/26
Abstract: Provided is an antenna device which is less prone to deterioration in radiation characteristics and which can be mounted in a small space. A second antenna element (13) includes a first portion (13a) and a second portion (13b). A first antenna element (12) is disposed on a first plane (P1), the first portion (13a) is disposed on a second plane (P2), and the second portion (13b) is disposed on a third plane (P3). When viewed in a direction orthogonal to the first plane (P1), the second portion (13b) does not overlap the first antenna element (12) except at an end region (13c).
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公开(公告)号：US10170825B2
公开(公告)日：2019-01-01
申请号：US15508993
申请日：2016-09-12
Applicant: Fujikura Ltd.
Inventor： Yoshihiro Niihara , Yuichiro Yamaguchi , Hiroshi Chiba , Masaki Ueyama , Ning Guan , Hiroiku Tayama
Abstract: The present invention includes: a film antenna (10); a cable (20) which is connected to a feed section (14) of the film antenna (10); and a support (30) around which at least part of the film antenna (20) is wound, the support (30) including a holding section for holding the cable (20).
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公开(公告)号：US20170279181A1
公开(公告)日：2017-09-28
申请号：US15508993
申请日：2016-09-12
Applicant: Fujikura Ltd.
Inventor： Yoshihiro Niihara , Yuichiro Yamaguchi , Hiroshi Chiba , Masaki Ueyama , Ning Guan , Hiroiku Tayama
CPC classification number: H01Q1/38 , H01Q1/1214 , H01Q1/20 , H01Q1/3275 , H01Q1/3283 , H01Q9/0414 , H01Q9/16 , H01Q9/30 , H01Q9/40
Abstract: The present invention includes: a film antenna (10); a cable (20) which is connected to a feed section (14) of the film antenna (10); and a support (30) around which at least part of the film antenna (20) is wound, the support (30) including a holding section for holding the cable (20).
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公开(公告)号：US09306274B2
公开(公告)日：2016-04-05
申请号：US14158312
申请日：2014-01-17
Applicant: FUJIKURA LTD.
Inventor： Hiroiku Tayama , Ning Guan
CPC classification number: H01Q1/48 , H01Q1/22 , H01Q1/38 , H01Q9/42 , Y10T29/49018
Abstract: An antenna device (10) includes: an antenna (100) including a radiating element (101) and an internal ground (103); a coaxial cable (200) whose internal conductor (204) is connected with the radiating element (101) and whose external conductor (203) is connected with the internal ground (103); and an external ground (500) connected with the external conductor (203) of the coaxial cable (200).
Abstract translation: 天线装置（10）包括：天线（100），包括辐射元件（101）和内部接地（103）; 同轴电缆（200），其内部导体（204）与所述辐射元件（101）连接，并且其外部导体（203）与所述内部接地（103）连接; 以及与同轴电缆（200）的外部导体（203）连接的外部接地（500）。
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